Minimally invasive negative pressure drainage device for plastic and cosmetic surgeryTechnical Field
The invention relates to the technical field of plastic and cosmetic surgery, in particular to a minimally invasive negative pressure drainage device for plastic and cosmetic surgery.
Background
Cosmetic shaping refers to medical science which aims at improving the external aesthetic feeling of a human body by repairing and remolding the appearance of the human body and the morphology of each part of the human body by using surgery, medicines, medical instruments and other medical technical methods. Drainage can play the effect of assisting hemostasis and preventing hematoma from forming in plastic surgery, and the common complication after plastic surgery is hematoma, so preventive drainage can be used as a common hemostasis method, and in order to facilitate the drainage needle to be inserted into effusion in a patient body, a drainage needle arranged in a sharp angle mode is generally adopted in the drainage device in the prior art, but the drainage needle arranged in the sharp angle mode is easy to stab the inner wall of an effusion cavity when the effusion is extracted, and secondary damage is caused to the patient, so that the minimally invasive negative pressure drainage device for plastic and cosmetic surgery is provided for solving the problems.
Disclosure of Invention
The invention aims to solve the defect that a drainage needle which is arranged in a sharp angle shape in the prior art is easy to stab the inner wall of a effusion cavity when extracting effusion and causes secondary injury to a patient, and provides a minimally invasive negative pressure drainage device for plastic and cosmetic surgery.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention provides a minimally invasive negative pressure drainage device for plastic and cosmetic surgery, which comprises a drainage cylinder, wherein a piston rod is inserted into the drainage cylinder, and a piston block is arranged at one end of the piston rod, which is positioned in the drainage cylinder;
the drainage tube is connected to the bottom end of the drainage tube, the other end of the drainage tube is detachably connected with a drainage needle, a protection block is arranged in the drainage needle and is in sliding fit with the drainage needle, a limiting block is arranged on one side, away from the outer end of the drainage needle, of the protection block, the limiting block is fixed on the inner wall of the drainage needle, a spring is fixed between the limiting block and the protection block, a connecting rope is fixed on the protection block, the other end of the connecting rope is fixedly connected with the piston block, and an involute is arranged on the connecting rope;
the drainage needle is sleeved with a fixing plate, a first sphere is fixed in the middle of the fixing plate, the first sphere is arranged in a hollow mode, a second sphere is arranged in the first sphere and is in sliding connection with the first sphere, the drainage needle penetrates through the second sphere, and the drainage needle is in sliding fit with the second sphere;
the fixed plate is rotatably provided with a pressing plate, a torsion spring is arranged at the rotating joint of the pressing plate, and a clamping block is arranged at one end of the pressing plate, which is close to the second sphere, and is inserted into the second sphere.
According to the minimally invasive negative pressure drainage device for the plastic and cosmetic surgery, preferably, the drainage tube is made of transparent materials, and scales are arranged on the drainage tube, so that the liquid accumulation extraction amount can be conveniently observed.
According to the minimally invasive negative pressure drainage device for the plastic and cosmetic surgery, preferably, the piston rod is rotationally connected with the piston block, the threaded block is arranged at the upper end of the piston rod, the threaded hole matched with the threaded block is formed in the top end of the drainage cylinder, the piston rod is positioned, movement of the piston rod in the transportation process is avoided, and therefore breakage of a connecting rope in the transportation process is avoided.
According to the minimally invasive negative pressure drainage device for the plastic and cosmetic surgery, preferably, the cross section of the protection block is annular, the outer wall of the protection block is provided with the grooves matched with the sharp corners of the drainage needles, the bottom end of the protection block is provided with the diversion grooves which are arranged in a staggered mode, and the factors that the end parts of the protection block are adsorbed on the inner wall of the effusion cavity are reduced.
According to the minimally invasive negative pressure drainage device for the plastic and cosmetic surgery, preferably, the protection block is made of a silica gel material, and when the spring is in a natural state, the sharp angle end of the drainage needle is located in the groove, and the exposed protection block is used for protecting the sharp angle end of the drainage needle.
According to the minimally invasive negative pressure drainage device for the plastic and cosmetic surgery, preferably, the middle part of the pressing plate is rotationally connected with the fixed plate, and the anti-slip layer is arranged at one end, away from the clamping block, of the pressing plate, so that the pressing plate can be rotated conveniently.
According to the minimally invasive negative pressure drainage device for the plastic and cosmetic surgery, preferably, the limiting holes are uniformly formed in the outer wall of the second sphere, the limiting holes are matched with the clamping blocks, the rotated second sphere is positioned through the matching of the limiting holes and the clamping blocks, the through holes matched with the drainage needles are formed in the second sphere, the anti-slip layers are arranged on the inner walls of the through holes, friction between the drainage needles and the second sphere is improved, and difficulty in moving the drainage needles in the second sphere is improved.
According to the minimally invasive negative pressure drainage device for the plastic and cosmetic surgery, preferably, the through hole is formed in the middle of the fixing plate, the first ball body is fixed in the through hole, and the rubber plate is arranged at the bottom end of the fixing plate, so that the fixing plate is conveniently fixed on a patient body, and the drainage needle is fixed.
The beneficial effects of the invention are as follows:
this device inserts to the hydrops intracavity after, through the pulling piston rod, makes the connection rope fracture, simultaneously through the spring to the ejecting drainage needle of protection piece, protects the closed angle end of drainage needle by the protection piece to reduce the stabbing to the hydrops intracavity wall, reduce and cause the secondary injury to the patient.
Through having seted up the guiding gutter in the bottom of protection piece, the flow of hydrops is convenient for through the guiding gutter, reduces when the drainage and makes the phenomenon of protection piece terminal surface absorption at hydrops intracavity wall because of the negative pressure.
Can adjust drainage needle male angle through first spheroid and the spheroidal cooperation of second, simultaneously, can fix the drainage needle after adjusting by the cooperation of joint piece and spacing hole, be convenient for drain the hydrops from different angles, improved the practicality.
Drawings
FIG. 1 is a schematic structural view of a minimally invasive negative pressure drainage device for plastic and cosmetic surgery, which is provided by the invention;
FIG. 2 is a schematic diagram of the structure of the interior of a drainage tube in the minimally invasive negative pressure drainage device for the plastic surgery;
FIG. 3 is a schematic structural view of a protective block in the minimally invasive negative pressure drainage device for plastic and cosmetic surgery;
FIG. 4 is a schematic structural view of the protection block of the minimally invasive negative pressure drainage device for the plastic and cosmetic surgery, which is matched with a drainage needle when in use;
FIG. 5 is a schematic view of the partial structure of the inside of a drainage needle in the minimally invasive negative pressure drainage device for plastic surgery;
fig. 6 is a schematic structural view of connection between a drainage needle and a fixing plate in the minimally invasive negative pressure drainage device for plastic surgery.
In the figure: 1. a drainage tube; 2. a scale; 3. a piston block; 4. a piston rod; 5. a screw block; 6. a drainage tube; 7. a drainage needle; 8. a protective block; 81. a groove; 82. a diversion trench; 9. a limiting block; 10. a spring; 11. a connecting rope; 12. involute; 13. a fixing plate; 14. a first sphere; 15. a second sphere; 16. a limiting hole; 17. a pressing plate; 18. and a clamping block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1-6, the minimally invasive negative pressure drainage device for the plastic and cosmetic surgery comprises a drainage tube 1, wherein the drainage tube 1 is made of transparent materials, a scale 2 is arranged on the drainage tube 1, so that the liquid accumulation extraction amount is convenient to observe, a piston rod 4 is inserted into the drainage tube 1, one end of the piston rod 4, which is positioned in the drainage tube 1, is provided with a piston block 3, the piston rod 4 is rotationally connected with the piston block 3, the upper end of the piston rod 4 is provided with a thread block 5, the top end of the drainage tube 1 is provided with a threaded hole matched with the thread block 5, the interior of the drainage tube 1 can be protected through the cooperation of the thread block 5 and the threaded hole, the entry of dust is reduced, meanwhile, the piston rod 4 can be limited, the piston rod 4 is prevented from being pulled in the transportation process, and the connecting rope 11 is prevented from being broken;
the drainage tube 6 is connected to the bottom end of the drainage tube 1, the drainage needle 7 is detachably connected to the other end of the drainage tube 6, in the drainage process, if the storage space of the drainage tube 1 is insufficient through the detachable drainage needle 7, the drainage tube 1 can be replaced at any time (an existing injector can be adopted for replacement), the protection block 8 is arranged in the drainage tube 7, the protection block 8 is in sliding fit with the drainage needle 7, one side, far away from the outer end of the drainage needle 7, of the protection block 8 is provided with the limiting block 9, the limiting block 9 is fixed on the inner wall of the drainage needle 7, a spring 10 is fixed between the limiting block 9 and the protection block 8, a connecting rope 11 is fixed on the protection block 8, the other end of the connecting rope 11 is fixedly connected with the piston block 3, an involute 12 is arranged on the connecting rope 11, the connecting rope 11 is convenient to break when the connecting rope 11 is pulled through the involute 12, the cross section of the protection block 8 is annular, grooves 81 matched with sharp corners of the drainage needle 7 are formed in the outer wall of the protection block 8, the bottom end of the protection block 8 is provided with guide grooves 82 which are arranged in a staggered mode, the protection block 8 is made of silica gel material, and when the spring 10 is in a natural state, and the sharp corners of the drainage needle 7 is located in the grooves as shown in the grooves 81 in the figure 4;
the drainage needle 7 is sleeved with a fixing plate 13, a first sphere 14 is fixed in the middle of the fixing plate 13, a through hole is formed in the middle of the fixing plate 13, the first sphere 14 is fixed in the through hole, a rubber plate is arranged at the bottom end of the fixing plate 13, the first sphere 14 is arranged in a hollow mode, a second sphere 15 is arranged in the first sphere 14, the second sphere 15 is in sliding connection with the first sphere 14, the drainage needle 7 penetrates through the second sphere 15, the drainage needle 7 is in sliding fit with the second sphere 15, limiting holes 16 are uniformly formed in the outer wall of the second sphere 15, the limiting holes 16 are matched with clamping blocks 18, through holes matched with the drainage needle 7 are formed in the second sphere 15, and an anti-slip layer is arranged on the inner wall of each through hole;
the clamp plate 17 is rotatably mounted on the fixed plate 13, a torsion spring is arranged at the rotary joint of the clamp plate 17, a clamping block 18 is arranged at one end of the clamp plate 17 close to the second sphere 15, the clamping block 18 is inserted into the second sphere 15, the middle part of the clamp plate 17 is rotatably connected with the fixed plate 13, and an anti-slip layer is arranged at one end of the clamp plate 17 away from the clamping block 18.
In this embodiment, when in use, the position of the fixing plate 13 on the drainage needle 7 is adjusted (the length of the drainage needle 7 inserted into the patient is adjusted), the outer end of the pressing plate 17 is pressed, the clamping block 18 is driven to be far away from the second sphere 15, the angle of the drainage needle 7 is adjusted, the drainage needle 7 is inserted into the effusion cavity on the patient, after the drainage needle 7 is inserted, the fixing plate 13 is fixed on the skin surface of the patient, the pressing plate 17 is loosened, the pressing plate 17 is driven to reset by the torsion spring, the clamping block 18 is inserted into the limiting hole 16, the second sphere 15 is positioned, and the drainage needle 7 is fixed;
the piston rod 4 is rotated, the threaded block 5 is separated from the drainage tube 1, the piston rod 4 is pulled, the piston rod 4 drives the piston block 3 to move upwards in the drainage tube 1, meanwhile, the connecting rope 11 is pulled, the connecting rope 11 is broken, the protection block 8 is pushed out of the drainage needle 7 through the spring 10, the sharp corner end of the protection block 8 protects the drainage needle 7, so that puncture to the inner wall of a liquid accumulation cavity is reduced, secondary damage to a patient is reduced, the piston rod 4 is pulled continuously, negative pressure is generated at the lower end of the drainage tube 1, and liquid accumulation in the liquid accumulation cavity is extracted into the drainage tube 1 through the drainage needle 7 and the drainage tube 6.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.